Unit 3 Vocabulary Review

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Across
  1. 2. How soil particles hold together
  2. 6. When rocks act like sandpaper against each other
  3. 7. Organic material in soil
  4. 8. Material that can support plant growth
  5. 12. Mass movement that is too slow to be seen
  6. 13. When weathered material is moved to a new location
  7. 14. Type of weathering that changes the size of the rock
  8. 16. Main cause of chemical weathering
  9. 17. The breaking down of rocks or minerals
  10. 18. Mixture of all 3 soil particles
Down
  1. 1. When a curved block of earth falls downward
  2. 3. This layer of soil supports plant growth
  3. 4. Transfer of rock/soil downhill because of gravity
  4. 5. When saturated soil starts to move downhill
  5. 9. When iron and oxygen react to make rust
  6. 10. Layer of rock/minerals fragments that cover earth
  7. 11. Type of weathering that changes the chemical makeup of the rock
  8. 15. The R horizon is made of this